There is no list of schools with rolling applications (that I'm aware of -- and I know quite a lot about this!). Best thing I can say is to take a look at this list, I'm sure you've seen it before:
http://grad-schools.usnews.rankingsandreviews.com/best-graduate-schools/top-physics-schools/rankings
At this point, I would send an e-mail to every single program (maybe skip the top 20 or something, they normally have their classes set by this point) and in one paragraph, tell them your area of interest, your QPA, your GRE scores, TOEFL (if applicable), research experience, and ask if they would consider an application.
But if you're serious about this, you have to do it NOW, most schools have an April 15th Deadline for you to accept their offer -- so you have to apply and get accepted before that deadline! I imagine most places will work something reasonable out with you. But really, if you're going to do this, a) do it now, and b) e-mail every single program that you would be willing to attend. I expect that very few schools will respond, so the only thing to do is to send out lots of e-mails.
It also wouldn't hurt to e-mail Pitt and re-affirm your interest. I would just send a short paragraph saying that you're still interested and another short paragraph summarizing the high points of your application and your physics interests. Pitt has no application fee, so it's a little difficult sometimes to separate the serious applicants from the people who just apply as a safety school with no intention of coming here...
And obviously, have a back up plan! Another year to strengthen your application and then re-apply is never a bad thing...
Best of luck!